About Us

Founded in 1990, the company’s principals have over seven decades of combined experience in public agencies, private consulting, and design/build firms. This wealth of expertise translates to proven leadership with sensitivity toward regulatory processes and a full understanding of the technical and management challenges of any project.


True to our roots as a Woman-Owned and Disadvantaged Business (WBE/DBE), CDW has consistently maintained a staff that is more than 50 percent female, from entry-level to senior executive positions. And we are proud of our field staff: a diverse team of environmental scientists and project engineers who share a passion and commitment to getting the job done right.

Meet Our Leadership Team


And Our Wonderful Associates

Sue Cahalan photo 230x260jpg

Sue Cahalan, PG, ALM, ISSP-SA

Director of Sustainability & Building Sciences

Brian 230x260

Brian Miller, LSP

Senior Project Manager

Scroll to Top